The Battle of Cirencester is fought in 628 at Cirencester in modern-day England.
The conflict involves the armies of Mercia, under King Penda, and the West Saxons, under Kings Cynegils and Cwichelm.
The Mercians defeat the Saxon army and, according to Bede, "after reaching an agreement", take control of the Severn valley and the minor kingdom of the Hwicce, which had been under the influence of Wessex since the Battle of Dyrham in 577.
